Sony Online Entertainment (SOE) is a game development and game publishing division of Sony that is best known for creating massively multiplayer online games, including EverQuest, EverQuest II, The Matrix Online, PlanetSide, Star Wars Galaxies, Free Realms, Vanguard: Saga of Heroes, DC Universe Online, PlanetSide 2 and other smaller games in development.

More information to https://www.soe.com